Window sash stopping device



June 6, 1944. D. e. SELL 05"- WINDOW SASH STOPPING DEVICE y Filed Sept.1, 1943 3nnentor ,zmaz'cz a. 6'eZZ Gttom g WWW Patented June 6, 1944UNITED STATES PATENT OFFICE WINDOW SASH STOPPING DEVICE Daniel G. Sell,Kansas City, Mo. Application September 1, 1943, Serial No. 500,815

3 Claims.

The invention relates to window sash stopping devices and has for itsobject to provide a device of this kind comprising a U-shaped bodymember adapted to be received on the inside strip of a window frame andhaving one of its arms provided with a clamping screw and its other armprovided with integral upwardly and inwardly extending piercing arms forengaging the inner side of the inside strip and also with a hingedlymounted piercing arm adapted to engage the adjacent side of the partingstrip and to position the arm of the U-shaped frame with its piercingmember and hinged piercing member in the path of the upper rail of thelower sash so that the device will limit the upward movement of the sashby unauthorized persons seeking entrance to the room.

-A further object is to provide a sash limiting device comprising aU-shaped frame adapted to arch and be clamped on the inside strip of awindow frame, and to pierce parts in a manner whereby the opening of thesash can be limited.

With the above and other objects in view the invention resides in thecombination and arrange- 4 ment of parts as hereinafter set forth, shownin the drawing, described and claimed, it being understood that changesin the precise embodiment of the invention may be made within the scopeof what is claimed without departing from the spirit A of the invention.

In the drawing:

Figure 1 is a perspective view of the sash limiting device.

Figure 2 is a vertical transverse sectional view through a portion ofthe upper and lower sash,

showing the devic applied to the window frame between the inside andparting strips. v Figure 3 is a top plan view of the device.

Figure 4 is a perspective view of a modified form of the device whereinthe hinged piercing member engages the side stile of the upper sash forlimiting the downward movement thereof.

Referring to the drawing, the numeral I designates the inside strip of aconventional form of 7' window frame, and 2 the parting strip. Slidablyin an upwardly and inwardly extending piercing arm 9 which is placed inengagement with the inner side I0 of the inside strip I and embeds inthe outside stripwhen the thumb screw II carried by the arm 6 istightened against the inside strip. After the U-shaped body member 5 isplaced in position the hinged piercing member I2 is positioned to pierceas at I3 the adjacent side of the parting strip 2.

After the sash 3 has been adjusted for proper ventilation of the roomthe device is placed in position above the sash. If anunauthorized'person attempts to raise the sash 3 for entering the roomthe sash rail 4 will engage the arm and will further embed the piercingmembers 9 and I 2, thereby preventing sash from being opened. Thepiercing member I2 is provided with an ey I4 which encircles the arm I,preferably between lugs I5 which lugs maintain the piercing member I2 inposition, however it is to be understood that V .lugs I5 may beeliminated so that thepiercing members can be used, particularly themember I2 against the parting stripor against the side stile of theupper sash I6.

Referring to the modified form shown in Figure 4, the operation issubstantially the same, however the curved piercing member I1 islongitudinally adjustable on the arm 'I so that it can cooperate withthe parting strip 2 or with the'side stile of the upper sash I6,therefore it will be seen that the upper sash will be held againstdownward movement, and the lower sash limited in its upward movement.

From the above it will be seen that a window sash limiting device isprovided which is simple in construction, and one which is compact andmay be easily transported from place to place and adjusted in positionon conventional'window frames. It will also be seen that the device maybe cheaply manufactured and sold.

. The invention having been set forth what. is

vided withan integral piercing member adapted to engage the inner sideof the inside strip, a set screw carried by the first mentioned arm ofthe ing strip, whereby the hinged piercing member may be placed toengage the parting strip or the side stile of the upper sash.

3. A device as set forth in claim 1 including means on, the arm betweenthe inside and parting strip for limiting side movement of the hingedpiercing member.

DANIEL G. SELL.

